/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.montecarloSimulacion.servlets;

import com.montecarloSimulacion.Vos.generadorMixto;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Miguel
 */
@WebServlet(name = "generadorServlet", urlPatterns = {"/generadorServlet"})
public class generadorServlet extends HttpServlet {

  /**
   * Processes requests for both HTTP
   * <code>GET</code> and
   * <code>POST</code> methods.
   *
   * @param request servlet request
   * @param response servlet response
   * @throws ServletException if a servlet-specific error occurs
   * @throws IOException if an I/O error occurs
   */
  private String error = "";
  private boolean bandera = true;
  private generadorMixto miGenerador;
  private Double NumeroA;
  private Double NumeroC;
  private Double NumeroM;
  private Double[] misNumeros;

  protected void processRequest(HttpServletRequest request, HttpServletResponse response)
          throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    try {
      if (bandera) {
        /* TODO output your page here. You may use following sample code. */
        HttpSession session = request.getSession();
        session.setAttribute("mensaje", misNumeros);
        session.setMaxInactiveInterval(1);
        response.sendRedirect("index.jsp");
      }else{
        HttpSession session = request.getSession();
        session.setAttribute("error", error);
        session.setMaxInactiveInterval(1);
        response.sendRedirect("index.jsp");
      }
    } finally {
      out.close();
    }
  }

  // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
  /**
   * Handles the HTTP
   * <code>GET</code> method.
   *
   * @param request servlet request
   * @param response servlet response
   * @throws ServletException if a servlet-specific error occurs
   * @throws IOException if an I/O error occurs
   */
  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
          throws ServletException, IOException {
    processRequest(request, response);
  }

  /**
   * Handles the HTTP
   * <code>POST</code> method.
   *
   * @param request servlet request
   * @param response servlet response
   * @throws ServletException if a servlet-specific error occurs
   * @throws IOException if an I/O error occurs
   */
  @Override
  protected void doPost(HttpServletRequest request, HttpServletResponse response)
          throws ServletException, IOException {
    try {
      NumeroA = Double.parseDouble(request.getParameter("numeroA"));
    } catch (NumberFormatException nfe) {
      // no double
      error += "No ha ingresado un numero valido para el numero A.<br>";
      bandera = false;
    }
    try {
      NumeroC = Double.parseDouble(request.getParameter("numeroC"));
    } catch (NumberFormatException nfe) {
      // no double
      error += "No ha ingresado un numero valido para el numero C.<br>";
      bandera = false;
    }
    try {
      NumeroM = Double.parseDouble(request.getParameter("numeroM"));
    } catch (NumberFormatException nfe) {
      // no double
      error += "No ha ingresado un numero valido para el numero M.<br>";
      bandera = false;
    }
    
    if(bandera){
      miGenerador = new generadorMixto(NumeroA,NumeroC,NumeroM);
      misNumeros = miGenerador.getMisNumeros();
    }

    processRequest(request, response);
  }

  /**
   * Returns a short description of the servlet.
   *
   * @return a String containing servlet description
   */
  @Override
  public String getServletInfo() {
    return "Short description";
  }// </editor-fold>
}
